Cylinder covering mechanism



3, 1945- I v N w. o. SJOGREN Re. 22,655

CYLINDER COVERING MECHANISM Original FiledMay l, 1943 2 Sheets-Sheet l Inventor? hhztaf 0. 572271- 72 Attorny.

J 3, 1945- 1 w. o. SJOGRENV 22555 CYLINDER COVERING MECHANISM Original Filed May 1, 1943 2 Sheets-:Sheet 2 I f I liner-nay.

Reiuued July 3, 1945 JSTTATTES PATENT OFFICE :e r snsn cov i isi ic MECHANISM Q original No 2334.357, dated November 16, 1943, Seriai'No. 485,389, May 1, 1943. Application for 'r'issiie December 7, 1944, Serial No. 567,003

This invention relates to the application of card elothiii'g to the surfaces of drums, cylinders or rollers "as. used "in cotton "or 'wool cards or -for dt h'z-siiriilaripui'pdses. v

'lilie"cardcltithing'for such cylinders is supplied in long, 'narrowbelt-like strips and is helically wound on the -c'ylin'der lirider heavy and continuous tension. Inthe usual practice, this tension may'be'bflthe order of 300 1504 pounds. It has seen the regular "procedure to'turn the cylinder manu ly against "this heavy tension, with an womandelays and substantial variations in bath s'pe'edan'd tension.

lt l si'the Ee'lfilfildbjebt (If In'y ihvelition to elifninate this's'lqwa'nd expe sive 'manualoperation of covering friiec'hahism, and to provide power means to tuih "the Cylinder 'OI' dllil'n continuousl and at 'a uniform "rate of speed, and which power Iiie'ansis 'nbtin'arkedly responsive to adjustment oi covering'tension. I

To then-complement "of this general object, one "feature 'of the unv'enuen relates "to the provision of 'conve'ni'eiit"and'eflfectivepower means for rotating the drum'and feeding the tension aevreimumeu relation andboth' from the same rhotor drivenwbnn{shaft A' further "feature .re- Iates tb 'a never construction by which the mechafiisrn "may fbe Conveniently attahed at "either end of a cylirider shaft. I "have also provided novel "means for supp-arcing the driving unit in either ortwo vertically reversed positions.

My invention further relates to a rangements and-combinations Deserts which 'v'v ill'be'hereinarteraescn'sea-ana more particularly pointed out inith'e appended claims, 7

preferred "fbiin bf the invention" is shown 'in the drawings, in "which "Figfi ii is an 'hlai'ged'partial sectional elevation, cares -mg the-line*3'"3*in Fig." 1; v

Figifis-fan ehiaigedside elevation or a hanger, lodkixig'inthedirectionof"t'i'iejarrowdinFig. 1;

'TfgfSis an-emerges edgev'iew of certain parts, Mtinginthe direction "ofthe-arrowfiin Fig. 1;

'Figffi isanenlarged plan view oft'he" base plate whichi'subbrts the" driiririgunit Fahd Fig. 7' isan enlarged side 'elevationof certain parts-with "a parting 'ofa hanger shown in section bathe-line ham-F154. v I

Referring "to the urawmgs, "I "have "shown a cylinder-fir drum C (Fig.1) having a drive shaft a part of a cotton or wool card. A-strip of card clothing is indicated at S and a usual commercial tension device is indicated at T. The tension device is' slidable transversely of the card'on a fixed guide-way or frame [2 and is moved transversely by a feed screw I 4 having a sprocket l5 connected by a chain 'IG'to a. sprocket l1 forming part of my improved covering mechanism which will now'be described.

I first provide an adaptor bushing (Fig. 3) which is keyed to the cylinder shaft I Band which supportsa relativeiy'la'rge worm gear 2'2. The gear 22 is keyed to the bushing '20, so'that the worm gear is effective to turn the cylinder, shaft I0 and cylinder C. The worm gear 22 rotates in bearings 24 in a gear casing 25'havi'ng a cover 26, and'the parts are held in assembled relation by a collar '2 l.

A worm shaft?!) (Fig. 1) is mounted in hearings in the casing 24 below the worm gear "22 and is provided with a sprocket 32 at one end and with a worm 3'4 engaging the worm-gear. The

worm shaft 30 is also provided with a second worm 36 (Fig. 1) engaging a second worm gear 31 rotatable with the sprocket l1 and through which it drivesth'e feed shaft it of the tension device T. The sprocket 32 on the "worm shaft 30is connected bya chain'lll to asmall sprocket 4| 'on'a shaft '42, which is the'o'utput shaft of a speed-reducing gear box'G.

The gear box G is mounted on a'baseplate 50, which also supports a motor M connected'to the shaft 44 through a coupling '52. "A magnetic brake 54 is also preferably mounted on the plate 50 andbp'erates to effect abrupt stopping of the motor M.

The tension device "1, gear box G, the 'motor M and the magnetic brake 54 may all be of usual commercial constructions, it being essential, however,'that the motor M have a strong starting torque. Anyusualmanual control may be provided for the motor M v The transverse position of the output shaft 42 of the gear box G is indicated by the -center line a inFig. 6 and the position of the intake shaft 44 is indicatedby'the center line b, the'setwo shafts being'offset'by a distance 0. The motor M is mounted on'the center line b (Fig. 6) and is thus substantially'out of alignment with the axis of 'the shaft. 42 which drives the worm shaftffifl;

The casing 26 (Fig. 1) 'fo'r'the worm gear '22 and the casing extension 26 for the worm gear 31 are "provided with downward extensions [ill l0 and assumed to be mounted in and to form 55 and GI to receive a supporting shaft 62, along they may be secured by set-screws or in any other.

convenient. way.

The base plate 50 is suspended from the supporting shaft 62 by hangers 65 (Figs. 1 and 4). Each hanger 65 is provided with an inclined upper notch 66 (Fig. 4) and with an inclined lower notch 61, and also with a stud 68 by which it may be secured tothe base plate 50.

When the parts are in the position shown in Fig. 1, the hangers 65 have their upper notches 66 engaged with the supporting shaft 62, the hangers being held from axial displacement on the shaft by collars and H (Fig. '7). Each collar II has a stud 14 adapted to extend into a small hole I5 (Fig. 4) above a notch 66 .or 51 of each hanger and thus prevent upward or angular displacement of the hangers when power is applied to turn the cylinder C;

When the parts are in the position shown in Fig. 1, the motor M is substantially displaced toward the observer and will not interfere with the mounting of the worm. gear 22 and its casing 24 on the end of the cylinder shaft I0 and in reasonably close relation tothe drum or cylinder C. If, however, it should be necessary or desirable to mount the worm gear on the opposite end of the cylinder shaft II], the position of the motor M would prevent any such close association of the parts, by reason of its offset position.

To avoid this difficulty, I arrange the parts in the reversed position shown in Fig. 2, in which position the base plateil) and the driving unit parts mounted thereon are all inverted. The hangers 65 are also removed and reversed with respect to the plate 50. v i

, I then use the lower notches 61 in the hangers 65 for engagement with the supporting shaft 62. The notches 6B and 6'! are so spaced apart that the distances between the worm shaft and the power output shaft 42 will be the same, whether the driving unit is upright or inverted,

Brace rods 15 and 16 are clamped in the opposite ends of the supporting shaft 62 and extend downward to engage the floor or any other available supporting surface. A'similar brace rod 11 extends through and may be secured to the base plate 50. Different adapter bushings permit convenient attachment of the mechanism to cylinder shafts of different diameters.

Having described the details of construction of my improved covering mechanism, it will be seen that the mechanism is simple and reliable; that it may be readily attached to a cylinder shaft for either a right-hand or a left-hand drive; that continuous power and uniform speed is provided for the cylinder C; and that a similarly continuous and uniform speed is provided for the feed shaft of the tension device T. It will also be noted that the rate of rotation of the cylinder C and the rate of rotation of the feed shaft M are i in a fixed and predetermined speed relation. An

opening in the base plate 50 allows passage of i the chain 40 when the driving unitis inverted.

By the use of my improved covering mechanism, the time required to cover a cylinder is substantially reduced, and furthermore the services of the two men required to turn the cylinder manu ally are eliminated, as is also much lost time due tofatigue. Furthermore, both the speed and the tension are much more uniform and consequently the card clothing is applied in such manner 'as to u give improved service.

advantages thereof, 1 do not wish to be limited to and means to support said. driving unit in either upright or reversed positions, said driving connection being fully operative and said driving unit being equally effective in both of said positions.

2. The combination in a covering mechanism as set forth in claim 1, in which the driving unit is mounted on a reversible base plate, and in which hangers connect said plate to a supporting shaft and automatically position said plate at different predetermined distances therefrom.

3. The combination in a covering mechanism as set forth in claim 1, in which the driving unit is mounted on a reversible base plate and includes a driving shaft, and in which'hangers connect said plate to a. supporting shaft and automatically position said plate to keep the axial spacing between said driving shaft and said wormshaft constant in either the upright or the reversed position of said driving unit.

4. The combination in a covering mechanism as set forth in claim 1, in which the driving unit .includes a gear box having transversely offset intake and output shafts a driving motor aligned with said intake shaft, anda base plate on which said gear box and motor are assembled as a driving unit, said assembled base plate and driving unit being vertically reversible for operative attachment to either end of a cylinder haft.

5. The combination in a covering mechanism as set forth in claim 1, in which the driving unit is mounted on a reversible base plate, and in which hangers connect said plate to a supporting shaft, and in which means is provided to prevent vertical or angular displacement of said hangers about said supporting shaft.

6. The combination in a covering mechanism as set forth in claim 1, in which the driving unit includes a gear box having transversely offset. intake and output shafts, a driving motor aligned withsaid intake shaft, a base plate on which said gear box and motor are assembled as a driving unit, and a magnetic brake for said driving motor mounted on said base plate.

"7. In a covering mechanism for a cylinder having a cylinder shaft, in combination, a worm gear attachable to said cylinder shaft, a worm for said worm gear, a worm shaft for said worm, a power driving unit, a driving connection between said power driving unit and said worm shaft, a base plate on which said power driving unit is mounted, a supporting shaft secured in said covering mechanism and positioned below said worm shaft, spaced hangers suspending said base plate from said supporting shaft at a predetermined distance below said shaft, and coacting parts on said hangers and supporting shaft effec- 'tive to prevent both axial and vertical displacement of said hangers relative to said shaft, said coacting parts comprising a pair of collars on said supporting shaft embracing each hanger to prevent axial displacement thereof, and means engageable by relative axial sliding movement of one of each pair of collars and itsassociated hanger to prevent vertical displacement thereof.

. WALTER Q. SJOGREN. 

